STRUCT IB_MR_STATUS(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME (aka what even is this)

struct ib_mr_status — the memory region status container, bestie. It's the little box that holds the vibes of your MR check, and by vibes I mean fail status bits and signal error info ✨

This one lives in the kernel API manual, section 9, and no cap, it's short and sweet 🎀

✨ SYNOPSIS ✨

Here's the whole fit, exactly as it ships, don't touch the formatting:

struct ib_mr_status {
    u32 fail_status;
    struct ib_sig_err   sig_err;
 };

That's it. Two fields. Iconic minimalism 💅

🫶 Members

  • fail_status — a bitmask of MR check status, okay? For each check that fails, the matching status bit gets set. So like, every L gets its own little flag fired off. Not me keeping receipts 📝
  • sig_err — extra deets for an IB_MR_CEHCK_SIG_STATUS failure. (Yes, spelling is exactly like that in the source — leaving it as-is, fr fr, not my typo to fix 💀)

🔥 SEE ALSO

Okay this is the part where the friend group shows up, and the friend group is like ninety-something functions and structs. All of them. Here we go, no skipping 🙈

Look at that roster. Main character energy from literally every single one of them 👑 And yeah, the whole thing is documented in the kernel file ./include/rdma/ib_verbs.h — that's where the source of truth lives, go read it iykyk 📖

💖 tiny reminder bestie: IB_MR_CEHCK_SIG_STATUS is spelled that way on purpose in the page. Copy it exact if you're grepping, don't come for me 🫶

and that's the whole page, mwah 💋 this little writeup comes to you from ./include/rdma, dated October 2026 — go forth and check those MR statuses, slay 🦋✨

📦 where this page comes from